diff --git a/chapters/4.application-implementation/4.0.application-implementation.tex b/chapters/4.application-implementation/4.0.application-implementation.tex
index f75b58c..80b125d 100644
--- a/chapters/4.application-implementation/4.0.application-implementation.tex
+++ b/chapters/4.application-implementation/4.0.application-implementation.tex
@@ -4,3 +4,5 @@
 \input{chapters/4.application-implementation/4.2.implementation-methodology}
 \input{chapters/4.application-implementation/4.3.implementation-technology-stack}
 \input{chapters/4.application-implementation/4.4.implementation-architecture}
+\input{chapters/4.application-implementation/4.5.problems-faced}
+\input{chapters/4.application-implementation/4.6.design-implementation-differences}
diff --git a/chapters/5.conclusions/5.1.problems-faced.tex b/chapters/4.application-implementation/4.5.problems-faced.tex
similarity index 100%
rename from chapters/5.conclusions/5.1.problems-faced.tex
rename to chapters/4.application-implementation/4.5.problems-faced.tex
diff --git a/chapters/5.conclusions/5.2.design-implementation-differences.tex b/chapters/4.application-implementation/4.6.design-implementation-differences.tex
similarity index 53%
rename from chapters/5.conclusions/5.2.design-implementation-differences.tex
rename to chapters/4.application-implementation/4.6.design-implementation-differences.tex
index 3f750cc..d8c480a 100644
--- a/chapters/5.conclusions/5.2.design-implementation-differences.tex
+++ b/chapters/4.application-implementation/4.6.design-implementation-differences.tex
@@ -1 +1 @@
-\section{Διαφορές σχεδιασμού-υλοποίησης}
+\section{Διαφορές σχεδιασμού-υλοποίησης} \label{section:4-5-design-implementation-differen}
diff --git a/chapters/5.conclusions/5.0.conclusions.tex b/chapters/5.conclusions/5.0.conclusions.tex
index 37ef4bb..41641e1 100644
--- a/chapters/5.conclusions/5.0.conclusions.tex
+++ b/chapters/5.conclusions/5.0.conclusions.tex
@@ -1,6 +1,4 @@
 \chapter{Συμπεράσματα}\label{chapter:5-conclusions}
 
-\input{chapters/5.conclusions/5.1.problems-faced}
-\input{chapters/5.conclusions/5.2.design-implementation-differences}
-\input{chapters/5.conclusions/5.3.open-areas}
-\input{chapters/5.conclusions/5.4.conclusion}
+\input{chapters/5.conclusions/5.1.open-areas}
+\input{chapters/5.conclusions/5.2.conclusion}
diff --git a/chapters/5.conclusions/5.3.open-areas.tex b/chapters/5.conclusions/5.1.open-areas.tex
similarity index 100%
rename from chapters/5.conclusions/5.3.open-areas.tex
rename to chapters/5.conclusions/5.1.open-areas.tex
diff --git a/chapters/5.conclusions/5.4.conclusion.tex b/chapters/5.conclusions/5.2.conclusion.tex
similarity index 100%
rename from chapters/5.conclusions/5.4.conclusion.tex
rename to chapters/5.conclusions/5.2.conclusion.tex
diff --git a/thesis.pdf b/thesis.pdf
index a743814..41f656a 100644
Binary files a/thesis.pdf and b/thesis.pdf differ